Radiator



April 26, 1932. MAZURETTE 1,855,644

RADIATOR 7 Filed June 18, 1928 Patented Apr. 26, 1932 NITED STATESnmvruivn I. .MAZURETTE,

OF DENVER, COLORADO RADIATOR .Application filed June 18,

My invention relates to radiators of the type used in heating systems,which byconduction, convection and radiation transmit the heat of steam,hot water or other heating fluid, passing through the system, to a roomor space in which the radiator is disposed.

It is an object of the present invention to provide in aradiator of theabove stated type certain features which combine lightness,

compactness and economy in construction with superior efficiency andpracticability in use.

Principal among these features is a means whereby the duration ofcontact ofthe air 13 with the heated surface of the radiator and thedirection in which the air travels along the surface arepredetermined-and controlled so as to increase the volume of air whichcan pass over the radiator, minimize'waste of heat, prevent damage towalls, draperies and other objects immediately behind the radiator, andprovide for the rapid transmission of the heat to the air within theroom, 7

Another distinctive feature of the invention resides in passing theheating medium through the radiator in small volumes anda thin stream,in which form it gives up its heat most readily by rapid cooling andcondensing. v r

The above "and other objects all" of which will be fully brought out inthe course of the following description, I attain by the'novel featuresof construction included in the embodiment of the invention accompanyingdrawings.

Figure l' of the drawings represents an end-elevation of two units of aradiator made in accordance withmy invention, v

Figure 2, a side elevation of the units shown in Figure a r Figure 3, atop or plan view of the same, Figure ft, a fragmentary section taken onthe line 4 4i, Figure 2, and I p Figure 5,-a fragmentary elevation ofthree units assembled into a radiator.

Like reference numerals designate corre sponding'parts throughout theviews. Referring further to the drawings, each unit of the radiatorconsists of a single flue 1 of oblong horizontal section, arched at its1923. Serial no. 286,435.

top and bottom and provided with suitably formed legs it when desiredfor its support on the floor of a compartment in which the radiator isinstalled. 2 The side-walls of the unit have adjacent the top andbottom. of. the flue, outwardly projecting hollow bosses which provideportsv 3 for the ingress and egress of the heating fluid, and egress ofcondensation, andwhere the radiator is composed of a plurality of unitsas illustrated in thedrawings, connect- 7 ing bosses 2 at the opposedsides of the units are placed in register with each other for thepassage of theheating fluid and condensation from one unit toanother ina circulatory movement l The units are furthermore provided withair-relief P0113845 v The flue provided by each unit is interiorly ofshort length in comparison with its width and height so thatthe heatingmedium pass ing through the flue is spread in the form of a thin streamor sheet to secure rapidtransmission of its heat to the walls of theunit;

a The inner surfaces .6 of the walls of each unit are plainand smooth tooffer the least resistance to the flowof the heating medium andcondensate and to simplify construction.

The outer surfaces of both side-walls of the inner units A of a radiatorand the outer surface of one ofthe side walls of the outer units B ofthe same, are provided with a :plurality of parallel ribs 7 inclined atan illustrated in the angle upward from the back and bottom of the unitsand spaced apart to form a series of correspondingly extending channels8 of considerable depth, and the'end-walls ofthe units mayhave verticalribs 9 which likewise provide channels 10 into which the air inside theroom may-enter. 1 In the use of the radiator composed of units of theabove described form andconstruction, the heating fluid passing throughthe flue in the form of a thin stream. or sheet rapidly transmits itsheat through the walls of the unit by conductionwhence the heatistransmitted to the air within the room and to adjacent objects byconvection and radiation. Owingto the smooth surfaces atthe inside of'theflue, the heating medium flows in an.

unobstructed stream and without other than frictional resistance betweenthe ingress ports and egress ports, and thereby transmits its heat tothe walls of the unit at its maximum temperature in a substantiallycontinu ous operation.

Owing to the presence of the ribs and channels, the outer surfaces ofthe units are of considerably greater superficial extent or area thanthe inner surfaces of the same and thereby efiect a closer equalizationof the rates of heat transmission by conduction and convection and alarge increase in effective heating surface and corresponding rating.

It is to be observed that this increased heating surfaceis obtainedwithout increase in the bulk, weight or cost-of production oftheradiator and. that infarct, in proportion to the rating, these threeessential factors are considerably decreased.

' The'channels slanting upwardly from the 7 back and bottom of the unitsas hereinbefore described, have, however, other functions that are ofvital importance in the operation of the radiator insomuch as theygreatly enhencev the, efficiency andpracticability of the same.

The value of the channels will be readily apparent from the. fact. thatthey increase the volume of. air contacting with the heating surfaces ofthe radiator, that they provide-for the continuous movement of thisvolume of air, and that by controlling the direction of travel of theair, they provide a greatly enlarged air orifice which makes possibleacorrespondingly increased volume of air that can travel'over theheating-sur faces, with greater average temperature'differences betweenthe air and the heating medium, the air volume being in fixed ratio withthe heating surface regardless of the height ofthe radiator, andeliminating dead heating surface.

The. direction of the channels moreover, causes. the air currentsterfiow away from the wall behind the radiator, thus protectingthe wall,draperies or other adjacent objects; from the damaging effects (if avertically ascendmg or uncontrolled column of highly heated air producedin the operation of radiators of types heretofore used, thus. acting asa shield andpreventin rapid and wasteful flow of heat through t e walldueto increased temperature difference between its inside and outsidesurfaces. The simple flue construction of the units,

combines simplicitywith increased efficiency owing ta the small volumeof the heating medium passing through the flue, proportion to the areaof wall surface which it serves, and the channeled construction, of

' the units, as; shown described, is highly advantageous for the reasonsliereinbeforeset. forth, e

. The positive controt of the directionv of tion,

the air travel over the heated surfaces and the absence of obstructionsto said travel, limit the duration of air-contact with the heatingsurfaces and thereby render every part of the surfaces active at alltimes. It

the channels inclined at an angle are also valuable from an economicpoint of view by preventing damage to the walls, draperies and otheradjacent objects and by preventing waste of heat through the walls-asstated hereinbefore.

In constructing a. radiator of units made in accordance with myinvention as hereinbefore described, it is desirable that the. outersurfaces of theouter units be smooth and without channels, as.illustrated in Figure 5,

to permit: of ornamentation of the exposed surfaces, and to eliminateunsightly .ribs where they are, of least advantage.

' It will be apparent that the slanting channels are mosteffectivebetween the unitsf more particularly since in ordinary radiatorconstruction the intermediate units are not as: fully exposed to theatmosphere as are the outer units and do not permit of the. passage ofsufficient air along their heating-surfaces 0 give full thermal value ofthe radiated eatr The ribs may be extended so that those of theadjoining units can meet to conjointly form slanting channels for thecirculation of the air as: has been shown at 12 in Figure 5 and in thismodifiedfccnstruction it is: ad-

' vantageous; that part of the ribs be of smaller height as shown at 13,to give sufficient: space for the P P Q Of cleaning the channels of"the. radiator between the units: thereof, whenever necessary.

What I claim and desire to secure by Lette'ISi Patent is:

1. A multi-section radiator comprising assembled units,.-opp.osed sidewalls of which have a multiplicity of parallel ribs. slanting fromadjacent. the bottom and rear edges; of the; walls, to adjacent te tapand front edges M of thesame, some of the ribs of the units adjoiningoneanother to cooperatively form channels; for the. slantingly" upwardpassage of air between the units, and ribs between the adjoining ribs;being of lesser width to provide with-in the channels, separatedgrooves. assisting in the: passage; and heating 7 of air, and permittingthe insertion of a brush toclean a multiplicity of ribs at one opera- 12;. A multi-section radiator comprising as-' no sembled heating-unitseach composed of a hollow vessel the side walls of which are adapted forthe transference of heat to outside air, said walls having exteriorparallel ribs forming grooves slanting in straight lines from pointsalong the bottom edges and rear upright edges of the walls to pointsalong the top edges and front upright edges of the same, and the unitsbeing assembled side by side with the grooves in opposed sidesregistering with each other to jointly provide a series of straightwaychannels between the units for the slantingly upward passage of air inthe direction determined by the relation of the points between which thegrooves extend, and with the ribs spaced from each other for theinsertion of a brush to clean a multiplicity of ribs at one operation. 7

In testimony, whereof I have aflixed my signature. 7

EDMUND L. MAZURETTE.

